Remove unused notify code. (#7805)

This code is unused and hasn't been modified since 2015 except for various times our files have been renamed. Let's remove it.

certbot/certbot/_internal/notify.py

@@ -1,34 +0,0 @@
-"""Send e-mail notification to system administrators."""
-
-import email
-import smtplib
-import socket
-import subprocess
-
-
-def notify(subject, whom, what):
-    """Send email notification.
-
-    Try to notify the addressee (``whom``) by e-mail, with Subject:
-    defined by ``subject`` and message body by ``what``.
-
-    """
-    msg = email.message_from_string(what)
-    msg.add_header("From", "Certbot renewal agent <root>")
-    msg.add_header("To", whom)
-    msg.add_header("Subject", subject)
-    msg = msg.as_string()
-    try:
-        lmtp = smtplib.LMTP()
-        lmtp.connect()
-        lmtp.sendmail("root", [whom], msg)
-    except (smtplib.SMTPHeloError, smtplib.SMTPRecipientsRefused,
-            smtplib.SMTPSenderRefused, smtplib.SMTPDataError, socket.error):
-        # We should try using /usr/sbin/sendmail in this case
-        try:
-            proc = subprocess.Popen(["/usr/sbin/sendmail", "-t"],
-                                    stdin=subprocess.PIPE)
-            proc.communicate(msg)
-        except OSError:
-            return False
-    return True

certbot/tests/notify_test.py

@@ -1,52 +0,0 @@
-"""Tests for certbot._internal.notify."""
-import socket
-import unittest
-
-import mock
-
-
-class NotifyTests(unittest.TestCase):
-    """Tests for the notifier."""
-
-    @mock.patch("certbot._internal.notify.smtplib.LMTP")
-    def test_smtp_success(self, mock_lmtp):
-        from certbot._internal.notify import notify
-        lmtp_obj = mock.MagicMock()
-        mock_lmtp.return_value = lmtp_obj
-        self.assertTrue(notify("Goose", "auntrhody@example.com",
-                               "The old grey goose is dead."))
-        self.assertEqual(lmtp_obj.connect.call_count, 1)
-        self.assertEqual(lmtp_obj.sendmail.call_count, 1)
-
-    @mock.patch("certbot._internal.notify.smtplib.LMTP")
-    @mock.patch("certbot._internal.notify.subprocess.Popen")
-    def test_smtp_failure(self, mock_popen, mock_lmtp):
-        from certbot._internal.notify import notify
-        lmtp_obj = mock.MagicMock()
-        mock_lmtp.return_value = lmtp_obj
-        lmtp_obj.sendmail.side_effect = socket.error(17)
-        proc = mock.MagicMock()
-        mock_popen.return_value = proc
-        self.assertTrue(notify("Goose", "auntrhody@example.com",
-                               "The old grey goose is dead."))
-        self.assertEqual(lmtp_obj.sendmail.call_count, 1)
-        self.assertEqual(proc.communicate.call_count, 1)
-
-    @mock.patch("certbot._internal.notify.smtplib.LMTP")
-    @mock.patch("certbot._internal.notify.subprocess.Popen")
-    def test_everything_fails(self, mock_popen, mock_lmtp):
-        from certbot._internal.notify import notify
-        lmtp_obj = mock.MagicMock()
-        mock_lmtp.return_value = lmtp_obj
-        lmtp_obj.sendmail.side_effect = socket.error(17)
-        proc = mock.MagicMock()
-        mock_popen.return_value = proc
-        proc.communicate.side_effect = OSError("What we have here is a "
-                                               "failure to communicate.")
-        self.assertFalse(notify("Goose", "auntrhody@example.com",
-                                "The old grey goose is dead."))
-        self.assertEqual(lmtp_obj.sendmail.call_count, 1)
-        self.assertEqual(proc.communicate.call_count, 1)
-
-if __name__ == "__main__":
-    unittest.main()  # pragma: no cover